Where to Place Security Cameras on a House
The starting convention is one camera per exterior door, one wide-angle camera for roughly every three reachable ground floor windows, and one covering the driveway or garage, then interior cameras only where a household actually wants them. This is a convention, not a standard, and a reader is entitled to adjust it for an unusual layout.
Most homes do not need a camera pointed at every square foot of the yard. Burglars overwhelmingly use a handful of predictable routes onto a property: the front door, a back or side door out of street view, a ground floor window within reach, and the garage. A placement plan built around those entry points covers the real risk far better than a plan built around covering scenery, and it costs fewer cameras to do it.
Placement decisions also create the legal exposure on this list, not the calculators. Where a lens points, whether it crosses a property line, and whether the recorder is capturing audio are all choices made at mounting time, and they are worth settling before a single bracket goes on the wall rather than after a complaint arrives.
This guide works through the entry points worth covering first, the count convention that turns a specific house layout into a specific camera total, and the privacy, audio, and signage questions that belong in the plan before a single hole gets drilled.
| DORI level | Pixels per metre of scene | What it actually shows |
|---|---|---|
| Detect | 25 ppm | Something is there, and it is a person rather than an animal or a shadow. |
| Observe | 62.5 ppm | Clothing and behaviour are visible enough to follow what someone is doing. |
| Recognise | 125 ppm | Enough detail to tell whether this is someone already known. |
| Identify | 250 ppm | Enough detail to identify a stranger to an evidential standard. |
Which entry points actually need a camera?
Ground floor doors carry the highest priority: the front door because it sees the most foot traffic and the most package deliveries, and any back or side door because it is out of view from the street and is the door a burglar is statistically more likely to try. A garage entry, including a walk-in side door rather than just the vehicle door, belongs on the same list.
Ground floor windows a person could reach without a ladder are the next tier, especially where landscaping or a fence hides them from the street. Upper floor windows and interior rooms are a much lower priority for exterior coverage.
A detached garage, a shed with valuable equipment inside, or a side gate leading to a fenced backyard are worth a look on the same walk-around. None of these carry the same priority as the front and back doors, but they are the entry points most likely to get skipped entirely if the plan starts and ends at the front door.
- Front door and any side or back door
- Garage entry, including a walk-in side door
- Ground floor windows reachable without a ladder
- The driveway or the approach a vehicle uses to reach the house
How many cameras does an average house need?
The working convention is one camera per exterior door, one wide-angle camera for roughly every three reachable ground floor windows, one covering the driveway or garage, and about one interior camera per 1,500 square feet if interior coverage is wanted at all. None of that is a code requirement; it is a starting point built on where a break-in actually happens rather than on floor area.
A single story house with two exterior doors, a garage, and six reachable windows lands at roughly two door cameras, two window-cluster cameras, and one driveway camera before any interior coverage is added. The camera count calculator turns a specific door and window count into that same total.
A two story or larger house does not automatically need more exterior cameras just for having more square footage; the exterior count still tracks doors and reachable windows rather than stories. Additional stories mainly change the interior figure, since more floor area under the roughly one-per-1,500-square-feet convention adds up faster in a larger house.
What height and angle should a placement plan assume?
Placement and mounting height are related but separate decisions. A camera aimed at the right entry point still fails if it is mounted so high and angled so steeply down that it only records the tops of heads. The short version carried through to every camera on this list is a height of roughly 2.5 to 3 metres, just out of easy reach, angled to catch a face rather than a scalp.
The full reasoning, the down-tilt math, and the blind spot that opens up directly under a camera belong to a dedicated guide rather than repeating here for every entry point on the property.
For a quick check while planning placement rather than mounting, a camera much higher than about 3.5 metres and angled steeply down toward a nearby door is the pattern most likely to end up recording tops of heads instead of faces, regardless of how good the sensor or lens is.
Can a camera face a neighbour's yard or windows?
No. A camera should be aimed at the reader's own property, and specifically not into a neighbour's yard or through a neighbour's windows, even incidentally. This applies just as much to a doorbell camera on a shared porch or a townhouse party wall as it does to a standalone camera on a fence line.
Where a wide field of view genuinely cannot avoid catching a strip of a neighbouring lot, that is a reason to narrow the lens or reposition the camera, not a reason to leave it. The lens field of view calculator and the camera spacing calculator both help confirm what a given lens actually covers at the mounting distance before drilling anything.
A shared driveway or a fence line running close to a neighbouring lot is a common place for this to go wrong by accident, since a camera aimed straight down a shared driveway for the reader's own security often ends up covering a neighbour's garage door or parked car in the same frame without anyone intending it.
Are cameras allowed in bedrooms, bathrooms, or a guest room?
Cameras in a bedroom, a bathroom, or any space where someone has a reasonable expectation of privacy are a serious legal problem, and that protection extends to guests, lodgers, and domestic workers, not just the homeowner. Good intentions, such as checking on a childcare provider, do not change the legal exposure of a camera in a space like that.
The safer default is exterior doors, entry points, and shared common areas only, and independent legal advice before placing any camera in a space that could plausibly be argued to be private.
Products marketed for watching a childcare provider or a household employee do not come with a legal exemption attached; the same expectation-of-privacy analysis applies to a nanny, a cleaner, or a live-in relative as it does to any other person in the home, and a camera in their private space is exposure regardless of the reason it was installed.
Does recording audio change the legal picture?
Yes, and it is treated differently from video in many places. A number of United States states require the consent of all parties to a conversation before it can be recorded, not just one party, and several NVRs and cloud cameras record audio by default without making that obvious during setup. A camera that is legal for video can still be a problem for audio in the same jurisdiction.
Check the specific rules where the camera is installed, and turn audio recording off in the camera or recorder settings if there is any doubt. This is general guidance and not legal advice; the actual rule depends on the reader's own state or country.
This matters most for a camera positioned to pick up a conversation on a porch, at a shared fence line, or anywhere someone other than the household might reasonably talk without expecting to be recorded. A camera aimed only at an empty driveway or an entry point raises this question far less often than one that regularly catches people talking within microphone range.
Do I need a sign, and does a landlord or HOA get a say?
Some jurisdictions require visible notice signage when video surveillance is in use, particularly for anything covering a shared or semi-public space. A landlord or a homeowners association will often have its own rules on top of that, covering where a camera can be mounted, whether it can face a shared walkway, and what has to be disclosed to other residents.
Check the lease or the association rules before mounting anything on a rented property or a shared building exterior. As with the rest of this section, this is general guidance rather than legal advice, and the specific rule varies by state and country.
The gear that matches this answer
REOLINK RLC-810A PoE Security Camera, 4K Wired Outdoor
$84.99The default 4K PoE bullet in this catalog: person and vehicle detection on the camera itself, so alerts are not triggered by every passing shadow.
- Resolution
- 8 MP
- Lens
- 4 mm
- Storage
- PoE, needs an NVR or NAS
Prices change often.
Amcrest UltraHD 4K 8MP Outdoor Security IP Turret PoE Camera, 98ft NightVision
$88.99A turret aims like a bullet but sits in a dome housing, so it avoids the infrared bounce a true dome can get off its own cover glass.
- Resolution
- 8 MP
- Stated IR range
- 98 ft
Prices change often.
Ring Floodlight Cam Wired Plus with Motion-Activated Lighting
$179.99The most widely fitted floodlight camera, and the lights are bright enough to keep the camera in colour across a whole driveway.
Check price on AmazonPrices change often.
WiTi Universal Vertical Pole Mount for Security Camera, Metal Corner Bracket
$9.98Aiming a camera along a wall instead of perpendicular to it roughly doubles the useful coverage of a rectangular property.
Check price on AmazonPrices change often.
ZT-NET Security Camera Corner Pole Mounting Bracket, Stainless Steel
$14.49A corner bracket that suits the smaller dome and turret bodies the larger mounts do not fit.
Check price on AmazonPrices change often.
Faittoo Video Surveillance Sign with 36 inch Stake, 12x12 inch
$22.99A staked sign at the property line, which is both the legal notice some places require and the warning that turns an opportunist away before anything happens.
Check price on AmazonPrices change often.
Common questions
Can I point a security camera at my neighbour's house?
No. A camera should stay within the boundary of the reader's own property and should not be aimed into a neighbour's yard or windows, even as an incidental part of a wider view. If a wide lens cannot avoid catching a strip of a neighbouring lot, narrow the lens or reposition the camera rather than leaving it pointed that way.
Is it legal to record audio on a doorbell camera?
It depends on the state or country. Many United States states require the consent of all parties to a conversation before it can legally be recorded, and some doorbell cameras and NVRs record audio by default. Check the specific rule for the reader's own location, and disable audio recording if there is any doubt; this is general guidance, not legal advice.
Do I need a camera inside my house at all?
Interior cameras are optional under the entry-point convention and are typically added at roughly one per 1,500 square feet if a household wants them. They should never go in a bedroom, bathroom, or any space with a reasonable expectation of privacy, including for guests or a domestic worker; exterior doors and shared common areas are the safer default.
Does a cloud camera create a privacy risk of its own?
Yes. A cloud subscription means a third party holds a copy of footage of the reader's own home rather than that footage staying on hardware in the house. A local NVR that never uploads is the more privacy-preserving option, at the cost of needing a drive and a recorder on site rather than relying entirely on a vendor's servers.
How many cameras does a typical two story house need?
Under the entry-point convention, count exterior doors, reachable ground floor windows, and whether a driveway or garage needs coverage, then add roughly one interior camera per 1,500 square feet if wanted. A typical two story house with two doors, a garage, and several reachable windows often lands between four and six cameras; the camera count calculator gives an exact figure for a specific layout.
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Keep going
Before you point a camera at anything. Aim cameras at your own property and your own boundary, never into a neighbour's windows or across their garden. Cameras in bedrooms, bathrooms, or anywhere else a person reasonably expects privacy are a serious legal problem, and that includes guests, lodgers and anyone who works in your home. Audio is legally different from video, many US states require the consent of every party to a recorded conversation, and several recorders capture audio by default, so check your own state before you enable it. Some places require visible notice that recording is taking place, and landlords and homeowner associations often impose their own rules on top. This is researched general information and not legal advice, and the law varies by state and by country.
And once it is installed. Change every default password, keep the firmware updated, and be clear with yourself about where the footage goes: a cloud camera means a third party holds recordings of your home, while a local recorder keeps them in your house. That is a genuine buying consideration, not a technicality.
Whatever gets mounted first, change the default password and confirm the firmware is current before that camera ever goes live on the network, and remember that a cloud camera puts a copy of the footage in a third party's hands rather than keeping it on hardware in the house.